A robust and efficient aqueous electrochemiluminescence emitter constructed by sulfonate porphyrin-based metal–organic frameworks and its application in ascorbic acid detection

Wang, Yiwen; Nan, Li-Jiao; Jiang, Yifan; Fan, Miao-Feng; Yuan, Pei-Xin; Wang, Ai‐Jun; Feng, Jiu‐Ju

doi:10.1039/c9an02442e

Cited by 11 publications

(10 citation statements)

References 55 publications

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“…As revealed by the SEM image (Figure A), plenty of well-distributed cuboid-like structures show up with a vertical orientation and a smooth surface. Interestingly, there hardly emerges any lattice fringe, which confirms its amorphous characteristic upon orderly self-assembly accumulation . By comparison, pure phenyDAT without slow crystallization does not show any network-like structure (Figure S1A).…”

Section: Resultsmentioning

confidence: 81%

“…Interestingly, there hardly emerges any lattice fringe, which confirms its amorphous characteristic upon orderly selfassembly accumulation. 31 By comparison, pure phenyDAT without slow crystallization does not show any network-like structure (Figure S1A).…”

Section: ■ Results and Discussionmentioning

confidence: 98%

“…To evaluate the analytical performance of the as-fabricated ECL sensor, the deposited Tr-HOFs amount closely correlates to the ECL responses (Figure S4A). Specifically, the ECL signals increase regularly with the enlarged amount of Tr-HOFs, reach the maximum at a Tr-HOFs concentration of 0.5 μg mL –1 , and display a downtrend in the ECL responses at the higher Tr-HOFs concentration due to the seriously restricted electron transfer between this emitter and the electrode …”

Section: Resultsmentioning

confidence: 99%

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Hydrogen Bond Organic Frameworks as a Novel Electrochemiluminescence Luminophore: Simple Synthesis and Ultrasensitive Biosensing

et al. 2021

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Nowadays, continuous efforts have been devoted to searching highly efficient electrochemiluminescence (ECL) emitters for applications in clinical diagnosis and food safety. In this work, triazinyl-based hydrogen bond organic frameworks (Tr-HOFs) were synthesized by N···H hydrogen bond self-assembly aggregation, where 6,6′-(1,4-phenylene)bis(1,3,5-triazine-2,4-diamine) (phenyDAT) was prepared via the cyclization reaction and behaved as a novel ligand. Impressively, the resulting Tr-HOFs showed strong ECL responses with highly enhanced ECL efficiency (21.3%) relative to the Ru(bpy)3 2+ standard, while phenyDAT hardly showed any ECL emission in aqueous phase. The Tr-HOFs innovatively worked as a new ECL luminophore to construct a label-free biosensor for assay of kanamycin (Kana). Specifically, the ECL response greatly weakened upon assembly of captured DNA with ferrocene (cDNA-Fc) onto the Tr-HOFs-modified electrode, while the ECL signals were adversely recovered by releasing linked DNA (L-DNA) from double-stranded DNA (dsDNA, hybridization of aptamer DNA (aptDNA) with L-DNA) due to the specific recognition of Kana with the aptDNA combined by the linkage of L-DNA and cDNA-Fc on the electrode. The as-built sensor showed a broadened linear range (1 nM–10 μM) and a limit of detection (LOD) down to 0.28 nM, which also displayed satisfactory results in the analysis of Kana in the milk and diluted human serum samples. This work offers a novel pathway to design an ECL emitter with organic molecules, holding great promise in biomedical analysis and food detection.

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Section: Resultsmentioning

confidence: 81%

Section: ■ Results and Discussionmentioning

confidence: 98%

Section: Resultsmentioning

confidence: 99%

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Hydrogen Bond Organic Frameworks as a Novel Electrochemiluminescence Luminophore: Simple Synthesis and Ultrasensitive Biosensing

et al. 2021

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“…5B), with a linear equation of I = 324.57 lg c + 3959.7 ( R 2 = 0.998). Based on the 3 σ (signal to noise ratio) method, 46 a limit of detection (LOD) is calculated to be about 0.73 fg mL −1 , which dramatically outperforms conventional HPLC method (Fig. S3,† with LOD larger than 1 ng mL −1 ).…”

Section: Resultsmentioning

confidence: 99%

Covalent organic framework linked with amination luminol derivative as enhanced ECL luminophore for ultrasensitive analysis of cytochromec

et al. 2022

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“…Metal-organic frameworks (MOFs) are formed by inorganic metal ions or clusters (e.g., alkaline earth metals [38,39], transition metals [40][41][42], and rare earth metals [43][44][45]) coordinated with organic ligands (e.g., carboxylates [46][47][48], phosphonate [49,50], and sulfonate [51,52]). Since the first MOF was demonstrated in 1989 [53], MOFs have been rapidly developed in terms of framework structures, functional groups, and potential applications in the last decades due to the probably infinite combination of coordination.…”

Section: Introductionmentioning

confidence: 99%

Metal-organic frameworks as functional materials for implantable flexible biochemical sensors

Ling

Liu

et al. 2021

Nano Res.

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Metal-organic frameworks (MOFs) exhibit attractive properties such as highly accessible surface area, large porosity, tunable pore size, and built-in redox-active metal sites. They may serve as excellent candidates to construct implantable flexible devices for biochemical sensing due to their high thermal and solution stability. However, MOFs-based sensors have only been mostly reported for in-vitro chemical sensing, their use in implantable chemical sensing and combination with flexible electronics to achieve excellent mechanical compatibility with tissues and organs has rarely been summarized. This paper systematically reviews the biochemical sensors based on MOFs and discusses the feasibility to achieve implantable biochemical sensing through MOFsbased flexible electronics. The properties of MOFs and underlying mechanisms have been introduced, followed by a summarization of different biochemical sensing applications. Strategies to integrate MOFs with flexible devices have been supplied from the standpoints of matching mechanics and compatible fabrication processes. Issues that should be addressed in developing flexible MOFs sensors and potential solutions have also been provided, followed by the perspective for future applications of flexible MOFs sensors. This paper may serve as a reference to offer potential guidelines for the development of flexible MOFs-based biochemical sensors that may benefit future applications in personal healthcare, disease diagnosis and treatment, and fundamental study of various biological processes.

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A robust and efficient aqueous electrochemiluminescence emitter constructed by sulfonate porphyrin-based metal–organic frameworks and its application in ascorbic acid detection

Abstract: The robust and strong ECL emission of organic emitters in aqueous solution is crucial for expanding their applications in early diagnosis.

Cited by 11 publications

References 55 publications

Hydrogen Bond Organic Frameworks as a Novel Electrochemiluminescence Luminophore: Simple Synthesis and Ultrasensitive Biosensing

Hydrogen Bond Organic Frameworks as a Novel Electrochemiluminescence Luminophore: Simple Synthesis and Ultrasensitive Biosensing

Covalent organic framework linked with amination luminol derivative as enhanced ECL luminophore for ultrasensitive analysis of cytochromec

Metal-organic frameworks as functional materials for implantable flexible biochemical sensors

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